/*
 * @Author: HZK
 * @Date: 2020-09-10 13:12:26
 * @LastEditTime: 2020-09-10 17:01:17
 * @LastEditors: hanfengmi
 * @Description: gulp配置
 */

const { src, dest, parallel, series, watch } = require('gulp');
const loadPlugins = require('gulp-load-plugins')
const plugins = loadPlugins()

const del = require('del');
const browserSync = require('browser-sync');
const { reload } = require('browser-sync');
const bs = browserSync.create()

const data = {
    menus:[
        {
            name:'Home',
            icon:'aperture',
            link:'index.html'
        },
        {
            name:'Features',
            link:'features.html'
        },
        {
            name:'About',
            link:'about.html'
        },
        {
            name:'Contact',
            link:'#',
            chidren:[
                {
                    name:'Twitter',
                    link:'test'
                },
                {
                    name:'About',
                    link:'test'
                },
                {
                    name:'Twitter2',
                    link:'test'
                }
            ]
        }
    ],
    pkg:require('./package.json'),
    date: new Date()
}

const clean = ()=>{
    return del(['dist','temp'])
}

const style = ()=>{
    return src('src/assets/styles/*.scss', { base: 'src'})
      .pipe(plugins.sass({outputStyle: 'expanded'}))  
      .pipe(dest('temp'))
      .pipe(bs.reload({stream:true}))
}

const script = ()=>{
    return src('src/assets/scripts/*.js', { base:'src' })
      .pipe(plugins.babel({presets:['@babel/preset-env']}))
      .pipe(dest('temp'))
      .pipe(bs.reload({stream:true}))
}

const page = ()=>{
    return src('src/**/*.html', { base:'src' })
      .pipe(plugins.swig({ data,cache:false }))
      .pipe(dest('temp'))
      .pipe(bs.reload({stream:true}))
}

const image = ()=>{
    return src('src/assets/images/**', { base:'src' })
      .pipe(plugins.imagemin())
      .pipe(dest('dist'))
}

const font = ()=>{
    return src('src/assets/fonts/**', { base:'src' })
      .pipe(plugins.imagemin())
      .pipe(dest('dist'))
}

const extra = ()=>{
    return src('public/**', { base:'public' })
      .pipe(dest('dist'))
}

const serve = ()=>{
    watch('src/assets/styles/*.scss', style)
    watch('src/assets/scripts/*.js', script)
    watch('src/**/*.html', page)
    watch([
        'src/assets/images/**',
        'src/assets/fonts/**',
        'public/**'
    ], bs.reload)
    bs.init({
        notify:false,
        port:8009,
        server:{
            baseDir:['temp', 'src', 'public'],
            routes:{
                '/node_modules':'node_modules'
            }
        }
    })
}

const useref = ()=>{
    return src('temp/*.html', {base:'temp'})
      .pipe(plugins.useref({ searchPath:['temp', '.']}))
      .pipe(plugins.if(/\.js$/,plugins.uglify()))
      .pipe(plugins.if(/\.css$/,plugins.cleanCss()))
      .pipe(plugins.if(/\.html$/,plugins.htmlmin({ collapseWhitespace: true, minifyCSS:true, minifyJS:true })))
      .pipe(dest('dist'))
}
const compile = parallel(style, script, page)
const build = series(clean, parallel(series(compile, useref), image, font, extra)) 
const develope = series(compile, serve) 

module.exports = {
    clean,
    build,
    develope
}
